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// Copyright 2017 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "core/fxcrt/xml/cfx_xmlelement.h"
#include <utility>
#include "core/fxcrt/cfx_widetextbuf.h"
#include "core/fxcrt/fx_extension.h"
#include "core/fxcrt/xml/cfx_xmlchardata.h"
#include "core/fxcrt/xml/cfx_xmltext.h"
#include "third_party/base/ptr_util.h"
#include "third_party/base/stl_util.h"
CFX_XMLElement::CFX_XMLElement(const WideString& wsTag)
: CFX_XMLAttributeNode(wsTag) {}
CFX_XMLElement::~CFX_XMLElement() {}
FX_XMLNODETYPE CFX_XMLElement::GetType() const {
return FX_XMLNODE_Element;
}
std::unique_ptr<CFX_XMLNode> CFX_XMLElement::Clone() {
auto pClone = pdfium::MakeUnique<CFX_XMLElement>(GetName());
pClone->SetAttributes(GetAttributes());
WideString wsText;
for (CFX_XMLNode* pChild = GetFirstChild(); pChild;
pChild = pChild->GetNextSibling()) {
if (pChild->GetType() == FX_XMLNODE_Text)
wsText += static_cast<CFX_XMLText*>(pChild)->GetText();
}
pClone->SetTextData(wsText);
return std::move(pClone);
}
WideString CFX_XMLElement::GetLocalTagName() const {
auto pos = GetName().Find(L':');
return pos.has_value()
? GetName().Right(GetName().GetLength() - pos.value() - 1)
: GetName();
}
WideString CFX_XMLElement::GetNamespacePrefix() const {
auto pos = GetName().Find(L':');
return pos.has_value() ? GetName().Left(pos.value()) : WideString();
}
WideString CFX_XMLElement::GetNamespaceURI() const {
WideString wsAttri(L"xmlns");
WideString wsPrefix = GetNamespacePrefix();
if (wsPrefix.GetLength() > 0) {
wsAttri += L":";
wsAttri += wsPrefix;
}
auto* pNode = static_cast<const CFX_XMLNode*>(this);
while (pNode) {
if (pNode->GetType() != FX_XMLNODE_Element)
break;
auto* pElement = static_cast<const CFX_XMLElement*>(pNode);
if (!pElement->HasAttribute(wsAttri)) {
pNode = pNode->GetParent();
continue;
}
return pElement->GetString(wsAttri);
}
return WideString();
}
WideString CFX_XMLElement::GetTextData() const {
CFX_WideTextBuf buffer;
for (CFX_XMLNode* pChild = GetFirstChild(); pChild;
pChild = pChild->GetNextSibling()) {
if (pChild->GetType() == FX_XMLNODE_Text ||
pChild->GetType() == FX_XMLNODE_CharData) {
buffer << static_cast<CFX_XMLText*>(pChild)->GetText();
}
}
return buffer.MakeString();
}
void CFX_XMLElement::SetTextData(const WideString& wsText) {
if (wsText.GetLength() < 1)
return;
AppendChild(new CFX_XMLText(wsText));
}
void CFX_XMLElement::Save(
const RetainPtr<CFX_SeekableStreamProxy>& pXMLStream) {
WideString ws(L"<");
ws += GetName();
pXMLStream->WriteString(ws.AsStringView());
for (auto it : GetAttributes()) {
pXMLStream->WriteString(
AttributeToString(it.first, it.second).AsStringView());
}
if (GetFirstChild()) {
ws = L"\n>";
pXMLStream->WriteString(ws.AsStringView());
for (CFX_XMLNode* pChild = GetFirstChild(); pChild;
pChild = pChild->GetNextSibling()) {
pChild->Save(pXMLStream);
}
ws = L"</";
ws += GetName();
ws += L"\n>";
} else {
ws = L"\n/>";
}
pXMLStream->WriteString(ws.AsStringView());
}
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